Corrupt SQL Database

How to Repair Corrupt SQL Database

You might have experienced corrupt SQL databases at one point, and what keeps bothering you is how to resolve it.

The repair process is usually straightforward, but it may seem like a cumbersome task when you don’t know the right thing to do.

There are numerous ways of fixing the problem, but using SQL Database Recovery Tool remains one of the most reliable solutions.

Before delving into the solution, it is beneficial to know what a SQL server is all about, why the database gets damaged at first, and how to detect corrupt SQL databases to prevent them from happening in the future.

What is SQL Server?

Microsoft developed the SQL Server with the sole aim of retrieving and storing data by other applications. Hence, it is used to retrieve and store data of any size.

SQL Server makes use of three types of files to manage and store information, and they include the following: Primary Files (.MDF extension), Secondary Files, and Log Files (.NDF and .LDF extensions), respectively.

  • Primary files are used to store User Data and objects such as Functions, Indexes, Views, Columns, Triggers, Tables, and Keys, among others.
  • Secondary files are usually optional, and it is mainly used to share data across numerous disks.
  • Log files are the backup files of all SQL servers. It is used to restore the database if it gets corrupt or damaged.

Reasons Why SQL Databases Get Corrupt.

SQL Databases could get damaged via several means. The primary server usually holds the user data, and when corrupt, it affects the whole database. The following are reasons why SQL databases get corrupt:

  • Presence of bugs in disk drivers.
  • Deleting data mistakenly.
  • Saving SQL databases in a compressed folder.
  • Unexpected system disruption while in use.
  • Virus and Malware attack.
  • Hard disk failure.
  • Network failure while working with SQL database.
  • Storage media corruption in the SQL database storage location.

How to Detect a Corrupt SQL Database

There are a few steps to detect whether your SQL database is corrupt. It could be seen with the pop-up notification or by running the database administrator.

1. Pop-up Notification Message

When running the corrupt database, the system displays a notification explaining why the database is not opening. These notification messages include the following: “Metadata Corruption Error”, “SQL Server Page Level Corruption”, “Error 9004 in SQL Server”, “Corruption on data pages,” and so on.

2. Being Unable to Open SQL Database Files

When you cannot access your SQL database, it might have been corrupted, and it needs to be repaired before it leads to severe data loss.

3. Running Database Administrator

When running the database administrator, the CHECKSUM and DBCC CHECKDB command is used to check the database for any database corruption. This process also detects any issue disrupting the database.

How to a Repair Corrupt SQL Database

Aside from using third-party software, manual solutions can repair corrupt SQL databases. However, the manual process doesn’t ensure sql database recovery since they mostly work for minor recoveries. Thus, Stellar Repair for MS SQL is recommended to fix major corrupted SQL databases.

Database Console commands like DBCC DBREPAIR and DBCC CHECKDB are used to repair minor SQL database damages. This procedure might not fix significant database corruption.

In a codicil, make use of the Log files (NDF). Since NDF files serve as backup files, they are used to restore the database whenever it gets corrupted. Moreover, this procedure might not apply to a significant SQL database error.

SQL database repair software is the best way to recover and repair all corrupt SQL databases. Stellar Repair for MS SQL is designed to solve any problems concerning corrupt or damaged SQL databases.

Follow the steps below the use Stellar Repair for MS SQL to repair corrupted databases:

Step 1: Launch the software and click on browse to select the corrupt database you wish to repair, then click on OK.

Step 2: Select the SQL MDF file and click on Repair.

Step 3: Select the preferred scan mode and click OK.

Step 4: The process is initiated immediately, and progress is seen.

Step 5: Click on OK when the process is complete.

Step 6: Save the repaired database in your preferred option, then click Next

Step 7: Enter connection ID to save the repaired SQL Server

Step 8: Click on Save to store the newly repaired database in any format.

Step 9: Progress is displayed

Step 10: The corrupt SQL database has been repaired and saved successfully.


No one relishes corrupted SQL databases, and a solution is sought after whenever it comes up. When you want to repair and access corrupt SQL databases, you can get it done by installing Stellar Repair for MS SQL, which has excellent tools for retrieving damaged databases. Use the procedures mentioned above to fix and access your database without unnecessary sophistication.


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